contrib/openpam/lib/pam_error.c

   1 /*-
   2  * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
   3  * Copyright (c) 2004-2007 Dag-Erling Smørgrav
   4  * All rights reserved.
   5  *
   6  * This software was developed for the FreeBSD Project by ThinkSec AS and
   7  * Network Associates Laboratories, the Security Research Division of
   8  * Network Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
   9  * ("CBOSS"), as part of the DARPA CHATS research program.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. The name of the author may not be used to endorse or promote
  20  *    products derived from this software without specific prior written
  21  *    permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * $Id: pam_error.c 408 2007-12-21 11:36:24Z des $
  36  */
  37
  38 #include <stdarg.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41
  42 #include <security/pam_appl.h>
  43 #include <security/openpam.h>
  44
  45 #include "openpam_impl.h"
  46
  47 /*
  48  * OpenPAM extension
  49  *
  50  * Display an error message
  51  */
  52
  53 int
  54 pam_error(const pam_handle_t *pamh,
  55         const char *fmt,
  56         ...)
  57 {
  58         va_list ap;
  59         char *rsp;
  60         int r;
  61
  62         va_start(ap, fmt);
  63         r = pam_vprompt(pamh, PAM_ERROR_MSG, &rsp, fmt, ap);
  64         va_end(ap);
  65         FREE(rsp); /* ignore response */
  66         return (r);
  67 }
  68
  69 /*
  70  * Error codes:
  71  *
  72  *     !PAM_SYMBOL_ERR
  73  *      PAM_SYSTEM_ERR
  74  *      PAM_BUF_ERR
  75  *      PAM_CONV_ERR
  76  */
  77
  78 /**
  79  * The =pam_error function displays an error message through the
  80  * intermediary of the given PAM context's conversation function.
  81  *
  82  * >pam_info
  83  * >pam_prompt
  84  * >pam_verror
  85  */